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/*
** ClanLib SDK
** Copyright (c) 1997-2005 The ClanLib Team
**
** This software is provided 'as-is', without any express or implied
** warranty. In no event will the authors be held liable for any damages
** arising from the use of this software.
**
** Permission is granted to anyone to use this software for any purpose,
** including commercial applications, and to alter it and redistribute it
** freely, subject to the following restrictions:
**
** 1. The origin of this software must not be misrepresented; you must not
** claim that you wrote the original software. If you use this software
** in a product, an acknowledgment in the product documentation would be
** appreciated but is not required.
** 2. Altered source versions must be plainly marked as such, and must not be
** misrepresented as being the original software.
** 3. This notice may not be removed or altered from any source distribution.
**
** Note: Some of the libraries ClanLib may link to may have additional
** requirements or restrictions.
**
** File Author(s):
**
** Magnus Norddahl
** (if your name is missing here, please add it)
*/
//! clanCore="System"
//! header=core.h
#ifndef header_thread
#define header_thread
#ifdef CL_API_DLL
#ifdef CL_CORE_EXPORT
#define CL_API_CORE __declspec(dllexport)
#else
#define CL_API_CORE __declspec(dllimport)
#endif
#else
#define CL_API_CORE
#endif
#if _MSC_VER > 1000
#pragma once
#endif
class CL_Thread_Generic;
class CL_ThreadId_Generic;
//: Thread callback interface.
//- !group=Core/System!
//- !header=core.h!
//- <p>When a thread is created, it will call run() in its attached CL_Runnable interface.</p>
class CL_Runnable
{
//! Construction:
public:
virtual ~CL_Runnable() { return; }
public:
//! Overrideables:
//: Called when a thread is run.
virtual void run()=0;
};
//: Thread Priority Enum
//- !group=Core/System!
//- !header=core.h!
enum EThreadPriority
{
cl_priority_above_normal,
cl_priority_below_normal,
cl_priority_highest,
cl_priority_idle,
cl_priority_lowest,
cl_priority_normal,
cl_priority_time_critical
};
//: ThreadId Class
//- !group=Core/System!
//- !header=core.h!
class CL_API_CORE CL_ThreadId
{
//! Construction:
public:
//: Create a ThreadId.
CL_ThreadId();
CL_ThreadId(const CL_ThreadId ©);
//: Destructor.
~CL_ThreadId();
//! Operations:
public:
CL_ThreadId &operator =(const CL_ThreadId ©);
bool operator ==(const CL_ThreadId &cmp) const;
bool operator !=(const CL_ThreadId &cmp) const;
bool operator <(const CL_ThreadId &cmp) const;
//! Implementation:
private:
CL_ThreadId_Generic *impl;
};
//: Thread Class
//- !group=Core/System!
//- !header=core.h!
class CL_API_CORE CL_Thread
{
//! Construction:
public:
//: Create a thread.
//param runnable: CL_Runnable object to be used as the thread run function.
//param delete_runnable: If true, deletes the CL_Runnable object, when CL_Thread is destroyed.
//param func: Callback function used as the thread run function. Example: int my_callback(void *value).
//param value: Value parameter passed to callback function.
CL_Thread(CL_Runnable *runnable, bool delete_runnable = false);
CL_Thread(int (*func)(void*), void *value);
CL_Thread(const CL_Thread ©);
CL_Thread();
inline bool is_initialized() {
return impl != 0;
}
//: Destructor.
~CL_Thread();
//! Attributes:
public:
//: Returns the thread ID of the calling thread.
static CL_ThreadId get_current_id();
//: Returns the thread ID of this thread.
unsigned int get_thread_id() const;
//! Operations:
public:
//: Copy assignement operator.
CL_Thread &operator =(const CL_Thread ©);
//: Starts the thread.
void start();
//: Terminate the thread. (use with caution under win98)
void terminate();
//: Wait until the thread finishes its execution.
void wait();
//: Set the thread priority.
void set_priority(EThreadPriority priority);
//! Implementation:
private:
CL_Thread_Generic *impl;
};
// Add support for doing cross platform Thread Local Storage variables:
#ifdef MSVC
#define CL_TLS __declspec(thread)
#else
#define CL_TLS __thread
#endif
#endif
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